Static Call Graph for image C:\Users\Armin\Desktop\Referee\Referee.axf



#<CALLGRAPH># ARM Linker, RVCT4.0 [Build 524]: Last Updated: Mon Dec 03 22:12:17 2018

Maximum Stack Usage = 240 bytes + Unknown(Functions without stacksize, Cycles, Untraceable Function Pointers)

Call chain for Maximum Stack Depth:

__rt_entry_main ⇒ main ⇒ __2sprintf ⇒ _printf_char_common ⇒ __printf

Functions with no stack information

Mutually Recursive functions

  • NMI_Handler   ⇒   NMI_Handler
  • HardFault_Handler   ⇒   HardFault_Handler
  • MemManage_Handler   ⇒   MemManage_Handler
  • BusFault_Handler   ⇒   BusFault_Handler
  • UsageFault_Handler   ⇒   UsageFault_Handler
  • SVC_Handler   ⇒   SVC_Handler
  • DebugMon_Handler   ⇒   DebugMon_Handler
  • PendSV_Handler   ⇒   PendSV_Handler
  • SysTick_Handler   ⇒   SysTick_Handler
  • ADC_IRQHandler   ⇒   ADC_IRQHandler

    Function Pointers

    Global Symbols

    __main (Thumb, 8 bytes, Stack size 0 bytes, __main.o(!!!main))

    [Calls]

    __scatterload (Thumb, 0 bytes, Stack size unknown bytes, __scatter.o(!!!scatter))

    [Called By]

    __scatterload_rt2 (Thumb, 44 bytes, Stack size unknown bytes, __scatter.o(!!!scatter), UNUSED)

    [Calls]

    __scatterload_rt2_thumb_only (Thumb, 0 bytes, Stack size unknown bytes, __scatter.o(!!!scatter), UNUSED)

    __scatterload_null (Thumb, 0 bytes, Stack size unknown bytes, __scatter.o(!!!scatter), UNUSED)

    __scatterload_copy (Thumb, 26 bytes, Stack size unknown bytes, __scatter_copy.o(!!handler_copy), UNUSED)

    [Calls]


    [Called By]

    __scatterload_zeroinit (Thumb, 28 bytes, Stack size unknown bytes, __scatter_zi.o(!!handler_zi), UNUSED)

    _printf_d (Thumb, 0 bytes, Stack size unknown bytes, _printf_d.o(.ARM.Collect$$_printf_percent$$00000009))

    [Stack]


    [Calls]

    _printf_percent (Thumb, 0 bytes, Stack size unknown bytes, _printf_percent.o(.ARM.Collect$$_printf_percent$$00000000))

    [Called By]

    _printf_percent_end (Thumb, 0 bytes, Stack size unknown bytes, _printf_percent_end.o(.ARM.Collect$$_printf_percent$$00000017))

    __rt_lib_init (Thumb, 0 bytes, Stack size unknown bytes, libinit.o(.ARM.Collect$$libinit$$00000000))

    [Called By]

    __rt_lib_init_alloca_1 (Thumb, 0 bytes, Stack size unknown bytes, libinit2.o(.ARM.Collect$$libinit$$0000002A))

    __rt_lib_init_argv_1 (Thumb, 0 bytes, Stack size unknown bytes, libinit2.o(.ARM.Collect$$libinit$$00000028))

    __rt_lib_init_atexit_1 (Thumb, 0 bytes, Stack size unknown bytes, libinit2.o(.ARM.Collect$$libinit$$00000017))

    __rt_lib_init_clock_1 (Thumb, 0 bytes, Stack size unknown bytes, libinit2.o(.ARM.Collect$$libinit$$0000001D))

    __rt_lib_init_cpp_1 (Thumb, 0 bytes, Stack size unknown bytes, libinit2.o(.ARM.Collect$$libinit$$0000002E))

    __rt_lib_init_exceptions_1 (Thumb, 0 bytes, Stack size unknown bytes, libinit2.o(.ARM.Collect$$libinit$$0000002C))

    __rt_lib_init_fp_trap_1 (Thumb, 0 bytes, Stack size unknown bytes, libinit2.o(.ARM.Collect$$libinit$$0000001B))

    __rt_lib_init_getenv_1 (Thumb, 0 bytes, Stack size unknown bytes, libinit2.o(.ARM.Collect$$libinit$$0000001F))

    __rt_lib_init_heap_1 (Thumb, 0 bytes, Stack size unknown bytes, libinit2.o(.ARM.Collect$$libinit$$00000006))

    __rt_lib_init_lc_collate_1 (Thumb, 0 bytes, Stack size unknown bytes, libinit2.o(.ARM.Collect$$libinit$$0000000D))

    __rt_lib_init_lc_ctype_1 (Thumb, 0 bytes, Stack size unknown bytes, libinit2.o(.ARM.Collect$$libinit$$0000000F))

    __rt_lib_init_lc_monetary_1 (Thumb, 0 bytes, Stack size unknown bytes, libinit2.o(.ARM.Collect$$libinit$$00000011))

    __rt_lib_init_lc_numeric_1 (Thumb, 0 bytes, Stack size unknown bytes, libinit2.o(.ARM.Collect$$libinit$$00000013))

    __rt_lib_init_lc_time_1 (Thumb, 0 bytes, Stack size unknown bytes, libinit2.o(.ARM.Collect$$libinit$$00000015))

    __rt_lib_init_rand_1 (Thumb, 0 bytes, Stack size unknown bytes, libinit2.o(.ARM.Collect$$libinit$$0000000A))

    __rt_lib_init_return (Thumb, 0 bytes, Stack size unknown bytes, libinit2.o(.ARM.Collect$$libinit$$0000002F))

    __rt_lib_init_signal_1 (Thumb, 0 bytes, Stack size unknown bytes, libinit2.o(.ARM.Collect$$libinit$$00000019))

    __rt_lib_init_stdio_1 (Thumb, 0 bytes, Stack size unknown bytes, libinit2.o(.ARM.Collect$$libinit$$00000021))

    __rt_lib_init_user_alloc_1 (Thumb, 0 bytes, Stack size unknown bytes, libinit2.o(.ARM.Collect$$libinit$$00000008))

    __rt_lib_shutdown (Thumb, 0 bytes, Stack size unknown bytes, libshutdown.o(.ARM.Collect$$libshutdown$$00000000))

    [Called By]

    __rt_lib_shutdown_fp_trap_1 (Thumb, 0 bytes, Stack size unknown bytes, libshutdown2.o(.ARM.Collect$$libshutdown$$00000006))

    __rt_lib_shutdown_heap_1 (Thumb, 0 bytes, Stack size unknown bytes, libshutdown2.o(.ARM.Collect$$libshutdown$$0000000E))

    __rt_lib_shutdown_return (Thumb, 0 bytes, Stack size unknown bytes, libshutdown2.o(.ARM.Collect$$libshutdown$$0000000F))

    __rt_lib_shutdown_signal_1 (Thumb, 0 bytes, Stack size unknown bytes, libshutdown2.o(.ARM.Collect$$libshutdown$$00000009))

    __rt_lib_shutdown_stdio_1 (Thumb, 0 bytes, Stack size unknown bytes, libshutdown2.o(.ARM.Collect$$libshutdown$$00000003))

    __rt_lib_shutdown_user_alloc_1 (Thumb, 0 bytes, Stack size unknown bytes, libshutdown2.o(.ARM.Collect$$libshutdown$$0000000B))

    __rt_entry (Thumb, 0 bytes, Stack size unknown bytes, rtentry.o(.ARM.Collect$$rtentry$$00000000))

    [Called By]

    __rt_entry_presh_1 (Thumb, 0 bytes, Stack size unknown bytes, rtentry2.o(.ARM.Collect$$rtentry$$00000002))

    __rt_entry_sh (Thumb, 0 bytes, Stack size unknown bytes, rtentry4.o(.ARM.Collect$$rtentry$$00000004))

    [Stack]


    [Calls]

    __rt_entry_li (Thumb, 0 bytes, Stack size unknown bytes, rtentry2.o(.ARM.Collect$$rtentry$$0000000A))

    [Calls]

    __rt_entry_postsh_1 (Thumb, 0 bytes, Stack size unknown bytes, rtentry2.o(.ARM.Collect$$rtentry$$00000009))

    __rt_entry_main (Thumb, 0 bytes, Stack size unknown bytes, rtentry2.o(.ARM.Collect$$rtentry$$0000000D))

    [Stack]


    [Calls]

    __rt_entry_postli_1 (Thumb, 0 bytes, Stack size unknown bytes, rtentry2.o(.ARM.Collect$$rtentry$$0000000C))

    __rt_exit (Thumb, 0 bytes, Stack size unknown bytes, rtexit.o(.ARM.Collect$$rtexit$$00000000))

    [Called By]

    __rt_exit_ls (Thumb, 0 bytes, Stack size unknown bytes, rtexit2.o(.ARM.Collect$$rtexit$$00000003))

    [Calls]

    __rt_exit_prels_1 (Thumb, 0 bytes, Stack size unknown bytes, rtexit2.o(.ARM.Collect$$rtexit$$00000002))

    __rt_exit_exit (Thumb, 0 bytes, Stack size unknown bytes, rtexit2.o(.ARM.Collect$$rtexit$$00000004))

    [Calls]

    wait (Thumb, 4 bytes, Stack size 0 bytes, glcd_lpc1700.o(.emb_text))

    [Called By]

    Reset_Handler (Thumb, 4 bytes, Stack size 0 bytes, startup_lpc17xx.o(.text))
    [Address Reference Count : 1]

    NMI_Handler (Thumb, 2 bytes, Stack size 0 bytes, startup_lpc17xx.o(.text))

    [Calls]


    [Called By]
    [Address Reference Count : 1]

    HardFault_Handler (Thumb, 2 bytes, Stack size 0 bytes, startup_lpc17xx.o(.text))

    [Calls]


    [Called By]
    [Address Reference Count : 1]

    MemManage_Handler (Thumb, 2 bytes, Stack size 0 bytes, startup_lpc17xx.o(.text))

    [Calls]


    [Called By]
    [Address Reference Count : 1]

    BusFault_Handler (Thumb, 2 bytes, Stack size 0 bytes, startup_lpc17xx.o(.text))

    [Calls]


    [Called By]
    [Address Reference Count : 1]

    UsageFault_Handler (Thumb, 2 bytes, Stack size 0 bytes, startup_lpc17xx.o(.text))

    [Calls]


    [Called By]
    [Address Reference Count : 1]

    SVC_Handler (Thumb, 2 bytes, Stack size 0 bytes, startup_lpc17xx.o(.text))

    [Calls]


    [Called By]
    [Address Reference Count : 1]

    DebugMon_Handler (Thumb, 2 bytes, Stack size 0 bytes, startup_lpc17xx.o(.text))

    [Calls]


    [Called By]
    [Address Reference Count : 1]

    PendSV_Handler (Thumb, 2 bytes, Stack size 0 bytes, startup_lpc17xx.o(.text))

    [Calls]


    [Called By]
    [Address Reference Count : 1]

    SysTick_Handler (Thumb, 2 bytes, Stack size 0 bytes, startup_lpc17xx.o(.text))

    [Calls]


    [Called By]
    [Address Reference Count : 1]

    ADC_IRQHandler (Thumb, 0 bytes, Stack size 0 bytes, startup_lpc17xx.o(.text))

    [Calls]


    [Called By]
    [Address Reference Count : 1]

    BOD_IRQHandler (Thumb, 0 bytes, Stack size 0 bytes, startup_lpc17xx.o(.text))
    [Address Reference Count : 1]

    CAN_IRQHandler (Thumb, 0 bytes, Stack size 0 bytes, startup_lpc17xx.o(.text))
    [Address Reference Count : 1]

    DMA_IRQHandler (Thumb, 0 bytes, Stack size 0 bytes, startup_lpc17xx.o(.text))
    [Address Reference Count : 1]

    EINT0_IRQHandler (Thumb, 0 bytes, Stack size 0 bytes, startup_lpc17xx.o(.text))
    [Address Reference Count : 1]

    EINT1_IRQHandler (Thumb, 0 bytes, Stack size 0 bytes, startup_lpc17xx.o(.text))
    [Address Reference Count : 1]

    EINT2_IRQHandler (Thumb, 0 bytes, Stack size 0 bytes, startup_lpc17xx.o(.text))
    [Address Reference Count : 1]

    EINT3_IRQHandler (Thumb, 0 bytes, Stack size 0 bytes, startup_lpc17xx.o(.text))
    [Address Reference Count : 1]

    ENET_IRQHandler (Thumb, 0 bytes, Stack size 0 bytes, startup_lpc17xx.o(.text))
    [Address Reference Count : 1]

    I2C0_IRQHandler (Thumb, 0 bytes, Stack size 0 bytes, startup_lpc17xx.o(.text))
    [Address Reference Count : 1]

    I2C1_IRQHandler (Thumb, 0 bytes, Stack size 0 bytes, startup_lpc17xx.o(.text))
    [Address Reference Count : 1]

    I2C2_IRQHandler (Thumb, 0 bytes, Stack size 0 bytes, startup_lpc17xx.o(.text))
    [Address Reference Count : 1]

    I2S_IRQHandler (Thumb, 0 bytes, Stack size 0 bytes, startup_lpc17xx.o(.text))
    [Address Reference Count : 1]

    MCPWM_IRQHandler (Thumb, 0 bytes, Stack size 0 bytes, startup_lpc17xx.o(.text))
    [Address Reference Count : 1]

    PLL0_IRQHandler (Thumb, 0 bytes, Stack size 0 bytes, startup_lpc17xx.o(.text))
    [Address Reference Count : 1]

    PLL1_IRQHandler (Thumb, 0 bytes, Stack size 0 bytes, startup_lpc17xx.o(.text))
    [Address Reference Count : 1]

    PWM1_IRQHandler (Thumb, 0 bytes, Stack size 0 bytes, startup_lpc17xx.o(.text))
    [Address Reference Count : 1]

    QEI_IRQHandler (Thumb, 0 bytes, Stack size 0 bytes, startup_lpc17xx.o(.text))
    [Address Reference Count : 1]

    RIT_IRQHandler (Thumb, 0 bytes, Stack size 0 bytes, startup_lpc17xx.o(.text))
    [Address Reference Count : 1]

    RTC_IRQHandler (Thumb, 0 bytes, Stack size 0 bytes, startup_lpc17xx.o(.text))
    [Address Reference Count : 1]

    SPI_IRQHandler (Thumb, 0 bytes, Stack size 0 bytes, startup_lpc17xx.o(.text))
    [Address Reference Count : 1]

    SSP0_IRQHandler (Thumb, 0 bytes, Stack size 0 bytes, startup_lpc17xx.o(.text))
    [Address Reference Count : 1]

    SSP1_IRQHandler (Thumb, 0 bytes, Stack size 0 bytes, startup_lpc17xx.o(.text))
    [Address Reference Count : 1]

    TIMER2_IRQHandler (Thumb, 0 bytes, Stack size 0 bytes, startup_lpc17xx.o(.text))
    [Address Reference Count : 1]

    TIMER3_IRQHandler (Thumb, 0 bytes, Stack size 0 bytes, startup_lpc17xx.o(.text))
    [Address Reference Count : 1]

    UART0_IRQHandler (Thumb, 0 bytes, Stack size 0 bytes, startup_lpc17xx.o(.text))
    [Address Reference Count : 1]

    UART1_IRQHandler (Thumb, 0 bytes, Stack size 0 bytes, startup_lpc17xx.o(.text))
    [Address Reference Count : 1]

    UART2_IRQHandler (Thumb, 0 bytes, Stack size 0 bytes, startup_lpc17xx.o(.text))
    [Address Reference Count : 1]

    UART3_IRQHandler (Thumb, 0 bytes, Stack size 0 bytes, startup_lpc17xx.o(.text))
    [Address Reference Count : 1]

    USB_IRQHandler (Thumb, 0 bytes, Stack size 0 bytes, startup_lpc17xx.o(.text))
    [Address Reference Count : 1]

    WDT_IRQHandler (Thumb, 0 bytes, Stack size 0 bytes, startup_lpc17xx.o(.text))
    [Address Reference Count : 1]

    __user_initial_stackheap (Thumb, 0 bytes, Stack size unknown bytes, startup_lpc17xx.o(.text))

    [Called By]

    delayMs (Thumb, 96 bytes, Stack size 0 bytes, timer.o(.text), UNUSED)

    TIMER0_IRQHandler (Thumb, 20 bytes, Stack size 0 bytes, timer.o(.text))
    [Address Reference Count : 1]

    TIMER1_IRQHandler (Thumb, 18 bytes, Stack size 0 bytes, timer.o(.text))
    [Address Reference Count : 1]

    enable_timer (Thumb, 20 bytes, Stack size 0 bytes, timer.o(.text))

    [Called By]

    disable_timer (Thumb, 20 bytes, Stack size 0 bytes, timer.o(.text))

    [Called By]

    reset_timer (Thumb, 28 bytes, Stack size 0 bytes, timer.o(.text), UNUSED)

    init_timer (Thumb, 72 bytes, Stack size 16 bytes, timer.o(.text))

    [Stack]


    [Calls]
    [Called By]

    __use_two_region_memory (Thumb, 2 bytes, Stack size 0 bytes, heapauxi.o(.text), UNUSED)

    __rt_heap_escrow$2region (Thumb, 2 bytes, Stack size 0 bytes, heapauxi.o(.text), UNUSED)

    __rt_heap_expand$2region (Thumb, 2 bytes, Stack size 0 bytes, heapauxi.o(.text), UNUSED)

    _sputc (Thumb, 10 bytes, Stack size 0 bytes, _sputc.o(.text))

    [Called By]


    [Address Reference Count : 1]

    __rt_udiv10 (Thumb, 16 bytes, Stack size 0 bytes, rtudiv10.o(.text))

    [Called By]

    __I$use$semihosting (Thumb, 0 bytes, Stack size 0 bytes, use_no_semi.o(.text))
    [Address Reference Count : 1]

    __use_no_semihosting_swi (Thumb, 2 bytes, Stack size 0 bytes, use_no_semi.o(.text), UNUSED)

    wait_delay (Thumb, 12 bytes, Stack size 0 bytes, glcd_lpc1700.o(.text))

    [Called By]

    GLCD_Init (Thumb, 2066 bytes, Stack size 8 bytes, glcd_lpc1700.o(.text))

    [Stack]


    [Calls]
    [Called By]

    GLCD_WindowMax (Thumb, 86 bytes, Stack size 8 bytes, glcd_lpc1700.o(.text))

    [Stack]


    [Calls]
    [Called By]

    GLCD_PutPixel (Thumb, 98 bytes, Stack size 16 bytes, glcd_lpc1700.o(.text), UNUSED)

    [Calls]

    GLCD_SetTextColor (Thumb, 8 bytes, Stack size 0 bytes, glcd_lpc1700.o(.text))

    [Called By]

    GLCD_SetBackColor (Thumb, 8 bytes, Stack size 0 bytes, glcd_lpc1700.o(.text), UNUSED)

    GLCD_Clear (Thumb, 94 bytes, Stack size 16 bytes, glcd_lpc1700.o(.text))

    [Stack]


    [Calls]
    [Called By]

    GLCD_DrawChar (Thumb, 242 bytes, Stack size 32 bytes, glcd_lpc1700.o(.text))

    [Stack]


    [Calls]
    [Called By]

    GLCD_DisplayChar (Thumb, 42 bytes, Stack size 24 bytes, glcd_lpc1700.o(.text))

    [Stack]


    [Calls]
    [Called By]

    GLCD_DisplayString (Thumb, 36 bytes, Stack size 16 bytes, glcd_lpc1700.o(.text))

    [Stack]


    [Calls]
    [Called By]

    GLCD_ClearLn (Thumb, 20 bytes, Stack size 8 bytes, glcd_lpc1700.o(.text), UNUSED)

    [Calls]

    GLCD_Bargraph (Thumb, 256 bytes, Stack size 32 bytes, glcd_lpc1700.o(.text), UNUSED)

    [Calls]

    GLCD_Bitmap (Thumb, 266 bytes, Stack size 40 bytes, glcd_lpc1700.o(.text), UNUSED)

    [Calls]

    GLCD_Bmp (Thumb, 226 bytes, Stack size 40 bytes, glcd_lpc1700.o(.text), UNUSED)

    [Calls]

    Delay (Thumb, 28 bytes, Stack size 0 bytes, main.o(.text), UNUSED)

    main (Thumb, 394 bytes, Stack size 112 bytes, main.o(.text))

    [Stack]


    [Calls]
    [Called By]

    UART0_Init (Thumb, 70 bytes, Stack size 0 bytes, uart.o(.text), UNUSED)

    UART0_SendByte (Thumb, 22 bytes, Stack size 0 bytes, uart.o(.text), UNUSED)

    [Called By]

    UART0_GetChar (Thumb, 18 bytes, Stack size 0 bytes, uart.o(.text), UNUSED)

    UART0_SendString (Thumb, 22 bytes, Stack size 4 bytes, uart.o(.text), UNUSED)

    [Calls]

    UART2_Init (Thumb, 72 bytes, Stack size 0 bytes, uart.o(.text))

    [Called By]

    UART2_SendByte (Thumb, 18 bytes, Stack size 0 bytes, uart.o(.text))

    [Called By]

    UART2_GetChar (Thumb, 18 bytes, Stack size 0 bytes, uart.o(.text))

    [Called By]

    UART2_SendString (Thumb, 22 bytes, Stack size 4 bytes, uart.o(.text), UNUSED)

    [Calls]

    UART0_SendChar (Thumb, 124 bytes, Stack size 16 bytes, uart.o(.text), UNUSED)

    [Calls]

    SystemInit (Thumb, 452 bytes, Stack size 0 bytes, system_lpc17xx.o(.text))

    [Called By]

    __2sprintf (Thumb, 34 bytes, Stack size 32 bytes, noretval__2sprintf.o(.text))

    [Stack]


    [Calls]
    [Called By]

    __printf (Thumb, 110 bytes, Stack size 24 bytes, __printf.o(.text))

    [Stack]


    [Calls]
    [Called By]

    _printf_int_dec (Thumb, 96 bytes, Stack size 24 bytes, _printf_dec.o(.text))

    [Stack]


    [Calls]
    [Called By]

    _printf_int_common (Thumb, 174 bytes, Stack size 32 bytes, _printf_intcommon.o(.text))

    [Stack]


    [Called By]

    _printf_char_common (Thumb, 34 bytes, Stack size 72 bytes, _printf_char_common.o(.text))

    [Stack]


    [Calls]
    [Called By]

    __user_setup_stackheap (Thumb, 74 bytes, Stack size 8 bytes, sys_stackheap_outer.o(.text))

    [Stack]


    [Calls]
    [Called By]

    exit (Thumb, 12 bytes, Stack size 0 bytes, exit.o(.text))

    [Calls]


    [Called By]

    __user_libspace (Thumb, 8 bytes, Stack size 0 bytes, libspace.o(.text), UNUSED)

    __user_perproc_libspace (Thumb, 0 bytes, Stack size 0 bytes, libspace.o(.text))

    [Called By]

    __user_perthread_libspace (Thumb, 0 bytes, Stack size 0 bytes, libspace.o(.text), UNUSED)

    _sys_exit (Thumb, 16 bytes, Stack size 0 bytes, sys_exit.o(.text))

    [Called By]

    Local Symbols

    delay (Thumb, 14 bytes, Stack size 0 bytes, glcd_lpc1700.o(.text))

    [Called By]

    lcd_send (Thumb, 44 bytes, Stack size 0 bytes, glcd_lpc1700.o(.text))

    [Called By]

    wr_cmd (Thumb, 44 bytes, Stack size 8 bytes, glcd_lpc1700.o(.text))

    [Stack]


    [Calls]
    [Called By]

    wr_dat (Thumb, 44 bytes, Stack size 8 bytes, glcd_lpc1700.o(.text))

    [Stack]


    [Calls]
    [Called By]

    wr_reg (Thumb, 36 bytes, Stack size 16 bytes, glcd_lpc1700.o(.text))

    [Stack]


    [Calls]
    [Called By]

    rd_reg (Thumb, 38 bytes, Stack size 16 bytes, glcd_lpc1700.o(.text))

    [Stack]


    [Calls]
    [Called By]

    rd_dat (Thumb, 98 bytes, Stack size 8 bytes, glcd_lpc1700.o(.text))

    [Stack]


    [Calls]
    [Called By]

    wr_dat_start (Thumb, 10 bytes, Stack size 0 bytes, glcd_lpc1700.o(.text))

    [Called By]

    wr_dat_stop (Thumb, 10 bytes, Stack size 0 bytes, glcd_lpc1700.o(.text))

    [Called By]

    wr_dat_only (Thumb, 32 bytes, Stack size 8 bytes, glcd_lpc1700.o(.text))

    [Stack]


    [Calls]
    [Called By]

    NVIC_EnableIRQ (Thumb, 24 bytes, Stack size 0 bytes, timer.o(.text))

    [Called By]

    _printf_input_char (Thumb, 10 bytes, Stack size 0 bytes, _printf_char_common.o(.text))
    [Address Reference Count : 1]

    Undefined Global Symbols